Thread: Pk80/68.5
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Old 02-06-2011, 04:26 PM
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Goat Herder Goat Herder is offline
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Join Date: Apr 2008
Location: N.M.
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Default Re: Pk80/68.5

Originally Posted by BiMoPed View Post
The 48cc has a 40 mm piston and bore
The 66 cc has a 47 mm piston and bore
therefore they have the same stroke
I think there is still two different stroke lengths floating around. I had re jugged the bigger of the two engines before piston wise and came up with having to shim a jug to get the piston to clear the top and make the ports work. Meaning that there was a short stroke version out there? I nick named my motor a stroker motor after that lol.
Still gotta have a since of humor.
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